class_docstr: Unit test class for testing a classifier model.
docstr: Creation test helper function.
docstr_tok: ["Creation","test","helper","function","."]
code: def _test_create(self, n, d, validation_set="auto"):
      """
      Creation test helper function.
      """
  
      # Simulate test data
      np.random.seed(42)
      sf = tc.SFrame()
  
      for i in range(d):
          sf.add_column(tc.SArray(np.random.rand(n)), inplace=True)
  
      target = np.random.randn(n)
      sf["target"] = target
      sf["target"] = sf["target"] > 0
      model = tc.classifier.create(
          sf, "target", features=None, validation_set=validation_set
      )
      self.assertTrue(model is not None, "Model is None.")
  
      features = sf.column_names()
      features.remove("target")
      model = tc.classifier.create(
          sf, "target", features=features, validation_set=validation_set
      )
      self.assertTrue(model is not None, "Model is None.")
      self.assertTrue(
          isinstance(
              model,
              tc.toolkits._supervised_learning.SupervisedLearningModel,
          )
      )
  
file_path: turicreate/src/python/turicreate/test/test_classifier.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import numpy
label_desc: Use image node_id 1 for calling the ClassifierCreateTest obj's underlying member method code with example usage: obj._test_create(n, d, validation_set) without return types